无线信号在室内走廊中的传播特性分析
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摘要
为解决室内应用中无线传感器网络的节点部署、定位与跟踪等问题,需要研究无信信号的传播特性。针对典型的室内走廊环境,对2. 4 GHz无线信号的路径损耗特性进行测定,论述发射天线与水平空间的角度D、发射天线高度h与路径损耗的关系,并对测试数据进行线性回归曲线分析。测试和拟合结果表明,在角度D=90°时,无线信号传播的路径损耗最低,随着h的增加,路径损耗的变化趋势减小,在h=1. 5 m时路径损耗最小。
In order to solve the problem of node deployment,location and tracking of Wireless Sensor Network( WSN)in indoor applications,it is necessary to study the propagation characteristics of unbelievable signals. Aiming at the typical indoor corridor environment,the path loss characteristics of the 2. 4 GHz w ireless signal are measured. The relationship betw een the angle of the transmitting antenna and the horizontal space,the height h of the transmitting antenna and the path loss is analyzed. Then,the linear regression curves are used to analyze the data. Test and fitting results show that the path loss of the w ireless signal propagation is the low est in the environment of the indoor corridor w hen the angle D is90°,and the change of the path loss decreases w ith the increase of the antenna height h,and the path loss at h = 1. 5 m.
In order to solve the problem of node deployment,location and tracking of Wireless Sensor Network( WSN)in indoor applications,it is necessary to study the propagation characteristics of unbelievable signals. Aiming at the typical indoor corridor environment,the path loss characteristics of the 2. 4 GHz w ireless signal are measured. The relationship betw een the angle of the transmitting antenna and the horizontal space,the height h of the transmitting antenna and the path loss is analyzed. Then,the linear regression curves are used to analyze the data. Test and fitting results show that the path loss of the w ireless signal propagation is the low est in the environment of the indoor corridor w hen the angle D is90°,and the change of the path loss decreases w ith the increase of the antenna height h,and the path loss at h = 1. 5 m.
引文
[1]KODALI R K,SREERAMYA S.Trust modle for WSN[C]//Proceedings of the 1st International Conference on Applied and Theoretical Computing and Communication Technology.Washington D.C.,USA:IEEE Press,2015:903-906.
[2]SHEN Junyang,MOLISHCH A F.Indirect path detection based on wireless propagation measurements[J].IEEETransactions on Wireless Communications,2012,11(12):4482-4493.
[3]LU Jing,LU Dianjie,HUANG Xiaoxia.Channel model for w ireless sensor netw orks in forest scenario[C]//Proceedings of the 2nd International Asia Conference on Informatics in Control,Automation and Robotics.Washington D.C.,USA:IEEE Press,2010:476-479.
[4]CAN Z,DEMIRBAS M.A survey on in-network querying and tracking services for w ireless sensor netw orks[J].Ad Hoc Netw orks,2013,11(1):596-610.
[5]高峰.2.4 GHz无线网络在视频监控系统中的应用[J].铁道通信信号,2011,47(2):61-63.
[6]李萌,孙恩昌,张延华.无线信道模型研究与展望[J].中国电子科学研究院学报,2012,7(4):362-364.
[7]WYNE S,SINGH A P,TUFVESSON F,et al.A statistical model for indoor office wireless sensor channels[J].IEEETransactions on Wireless Communications,2009,8(8):4154-4164.
[8]黄少驰,孔得强.室内无线电波传播实验研究[J].通信对抗,2011,5(1):47-49.
[9]王萍,勾天航,李朋朋,等.室内走廊环境高频段宽带无线信道测量与建模[J].电波科学学报,2012,27(3):47-49.
[10]田勇,唐祯安,喻言.室内无线传感器网络信道传输模型及统计分析[J].控制与决策,2014,29(6):1135-1138.
[11]朱莉,顾能华,姚英彪,等.基于RSSI的WSN二维对数搜索定位算法[J].计算机工程,2014,40(4):87-90.
[12]马健生,金志强,姜光,等.室内无线通信系统的路径损耗模型研究[J].信息通讯,2016(1):213-216.
[13]徐琨,刘宏立.室内环境下无线传感器网络路径衰减特性[J].传感器与微系统,2016,35(12):11-13.
[14]张翔,潘锦.双频水平极化全向天线的设计[J].电子科技,2014,25(5):59-61.
[15]李冲.收发天线高度对无线信道传播特性影响的测量与建模[D].北京:北京邮电大学,2014.
[16]张飞,耿红琴.基于阴影衰落信道建模的WSN能量优化算法[J].计算机工程,2016,42(6):108-112.
[17]MARTINEZ A,MOLINA J M,EGEA E.A accurate radio channel model for w ireless sensor netw orks simulation[J].Journal of Communications and Netw orks,2005,7(4):78-85.
[18]沈杰,姚道远,黄河清,等.野外地表无线传感网信道传播模型的测定与分析[J].光学精密工程,2008,16(1):141-149.
[2]SHEN Junyang,MOLISHCH A F.Indirect path detection based on wireless propagation measurements[J].IEEETransactions on Wireless Communications,2012,11(12):4482-4493.
[3]LU Jing,LU Dianjie,HUANG Xiaoxia.Channel model for w ireless sensor netw orks in forest scenario[C]//Proceedings of the 2nd International Asia Conference on Informatics in Control,Automation and Robotics.Washington D.C.,USA:IEEE Press,2010:476-479.
[4]CAN Z,DEMIRBAS M.A survey on in-network querying and tracking services for w ireless sensor netw orks[J].Ad Hoc Netw orks,2013,11(1):596-610.
[5]高峰.2.4 GHz无线网络在视频监控系统中的应用[J].铁道通信信号,2011,47(2):61-63.
[6]李萌,孙恩昌,张延华.无线信道模型研究与展望[J].中国电子科学研究院学报,2012,7(4):362-364.
[7]WYNE S,SINGH A P,TUFVESSON F,et al.A statistical model for indoor office wireless sensor channels[J].IEEETransactions on Wireless Communications,2009,8(8):4154-4164.
[8]黄少驰,孔得强.室内无线电波传播实验研究[J].通信对抗,2011,5(1):47-49.
[9]王萍,勾天航,李朋朋,等.室内走廊环境高频段宽带无线信道测量与建模[J].电波科学学报,2012,27(3):47-49.
[10]田勇,唐祯安,喻言.室内无线传感器网络信道传输模型及统计分析[J].控制与决策,2014,29(6):1135-1138.
[11]朱莉,顾能华,姚英彪,等.基于RSSI的WSN二维对数搜索定位算法[J].计算机工程,2014,40(4):87-90.
[12]马健生,金志强,姜光,等.室内无线通信系统的路径损耗模型研究[J].信息通讯,2016(1):213-216.
[13]徐琨,刘宏立.室内环境下无线传感器网络路径衰减特性[J].传感器与微系统,2016,35(12):11-13.
[14]张翔,潘锦.双频水平极化全向天线的设计[J].电子科技,2014,25(5):59-61.
[15]李冲.收发天线高度对无线信道传播特性影响的测量与建模[D].北京:北京邮电大学,2014.
[16]张飞,耿红琴.基于阴影衰落信道建模的WSN能量优化算法[J].计算机工程,2016,42(6):108-112.
[17]MARTINEZ A,MOLINA J M,EGEA E.A accurate radio channel model for w ireless sensor netw orks simulation[J].Journal of Communications and Netw orks,2005,7(4):78-85.
[18]沈杰,姚道远,黄河清,等.野外地表无线传感网信道传播模型的测定与分析[J].光学精密工程,2008,16(1):141-149.